WMSIC Electronic Components

HOLTEK BS814A-2 BS814A

ModelBS814A-2
PackageSOP-8_150mil
BrandHOLTEK
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HOLTEK(Holtek / Holtek) BS814A-2
Type
HOLTEK
Minimum package
1000

Technical parameters

Electronic Component
HOLTEK(Holtek / Holtek)
Electronic Component
BS814A-2
Electronic Component
1
Package
SOP-8_150mil
Electronic Component
Touch Controller IC
Electronic Component
0.15g
Electronic Component
1
Channel Count
4
Features
Capacitor
Electronic Component
BM0265437781
Operating Temperature
40℃~+85℃
Operating Voltage
2.2V~5.5V
Operating Current
2.2mA
Static Current
5uA
(tr)
100ms
Electronic Component
1000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

合泰BS814A-2触摸芯片产品概述

一、核心身份与品牌背景

BS814A-2是台湾合泰半导体(盛群半导体,HOLTEK)推出的4通道电容式触摸控制芯片,属于合泰经典触摸IC系列产品。合泰作为专注于MCU及触摸传感技术的半导体厂商,其产品以高可靠性、低功耗、抗干扰能力强著称,广泛应用于消费电子、智能家居、工业控制等领域。BS814A-2针对多按键触摸需求设计,是中小尺寸触摸界面的高性价比解决方案。

二、关键参数与核心特性

BS814A-2的参数设计兼顾性能与实用性,核心参数及特性如下:

  • 通道数:4通道电容式触摸输入,可同时检测4个独立触摸按键,满足基础多按键功能需求;
  • 工作电压:2.2V~5.5V宽电压范围,兼容干电池(如AA/AAA电池组)、USB供电及直流稳压电源,适配多种电源场景;
  • 工作电流:典型值2.2mA,确保实时触摸检测的响应速度,无明显延迟;
  • 静态电流:仅5μA,超低功耗设计可显著延长电池供电设备的待机时间;
  • 工作温度:-40℃~+85℃工业级温度范围,适应高低温环境(如户外设备、车载附件等);
  • 触摸特性:采用电容感应原理,抗环境干扰(湿度变化、电磁噪声)能力强,支持触摸灵敏度调节(部分型号可通过外部电容或软件配置);
  • 简化设计:内置RC振荡器,无需外接晶振,减少外围元件,降低系统成本与设计复杂度。

三、封装与引脚布局

BS814A-2采用SOP-8_150mil封装(小型贴片封装,引脚间距1.27mm),体积小巧(尺寸约5.2mm×6.4mm),适合集成度高的小型产品。引脚功能简化说明:

  • 电源引脚:VDD(正电源)、VSS(地);
  • 触摸通道:4个独立触摸输入引脚(如TP1~TP4),可通过外接触摸电极(铜箔、金属片等)实现触摸检测;
  • 控制/输出引脚:部分引脚可配置为按键输出(推挽输出),或用于灵敏度调节、校准等功能。

SOP-8封装兼容常规贴片生产设备,便于批量组装,适合量产需求。

四、典型应用场景

BS814A-2的4通道设计及低功耗特性,适配多种实际场景:

  1. 小型家电:电饭煲、微波炉、电热水壶的触摸控制按键(替代传统机械按键,提升产品质感与耐用性);
  2. 便携式设备:蓝牙音箱、移动电源、智能手环的功能按键(低静态电流延长电池续航);
  3. 智能家居单品:智能灯开关、温控器、窗帘控制器的触摸操作界面;
  4. 消费电子配件:遥控器、游戏机手柄、耳机充电盒的快捷按键;
  5. 工业/车载附件:车载USB充电器、小型工业控制器的触摸按键(宽温度范围适配 harsh环境)。

五、优势与市场适配价值

BS814A-2在同类产品中具有明显竞争优势:

  • 低功耗痛点解决:5μA静态电流是电池供电设备的核心优势,适合长期待机的便携式产品;
  • 宽适配性:2.2V5.5V电源范围与-40℃+85℃温度范围,覆盖大部分消费电子与工业场景;
  • 成本控制:内置RC振荡无需外接晶振,减少外围元件,降低系统BOM成本;
  • 可靠性验证:合泰多年技术积累及市场应用验证,确保产品抗误触、抗干扰能力,稳定适配不同环境。

该芯片适合对成本敏感、需多按键触摸、且有低功耗或宽温需求的产品设计,是中小尺寸触摸界面的优选方案。

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